Other Parts Discussed in Thread: TDA4VL, AM68
Tool/software:
Hi Teams,
I am debugging the mcu can function with this code
pdk_j721s2_10_00_00_27\packages\ti\csl\example\mcan\mcanEvmLoopback\mcan_evm_loopback_app_main_k3.c
I chage the bit times as below.
static int32_t App_mcanConfig(uint32_t mcanInstAddr, bool enableInternalLpbk)
{
/* Initialize bit timings
* Configuring 1Mbps and 5Mbps as nominal and data bit-rate respectively */
bitTimes
+ bitTimes.nomTimeSeg1 = 0x63U;
+ bitTimes.nomTimeSeg2 = 0x16U;
+ bitTimes.nomSynchJumpWidth = 0x16U;
+ bitTimes.dataRatePrescalar = 0x2U;
+ bitTimes.dataTimeSeg1 = 0x15U;
+ bitTimes.dataTimeSeg2 = 0x4U;
+ bitTimes.dataSynchJumpWidth = 0x4U;
}
I am using python to receive the can fd message.
bus = can.ThreadSafeBus(interface='pcan', channel='PCAN_USBBUS1', can_filters=filters,
f_clock_mhz=80,nom_brp=2,nom_tseg1=63,nom_tseg2=16,nom_sjw=16,data_brp=2,data_tseg1=15,data_tseg2=4,data_sjw=4, fd=True)
mcu uart logs
1) the python receive can message since not correct. "RX recv: Timestamp: 1733970171.484433 ID: 0004 S Rx E DL: 4 01 00 7f 00"
This look like some kind of error message. What it this stand for ?
2) where is the Nominal bit rate kbits/ ? Date bit rate kbit/s ?
3) which register address is can fd baud config ?
